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Title: New spectrophotometric and HPLC-UV/visible methods for the analysis of pesticids
Researcher: Manpreet Kaur
Guide(s): Malik, A K
Keywords: Chemistry
Pesticide Poisoning
Endocrine Disruptor
Upload Date: 3-Dec-2013
University: Punjabi University
Completed Date: 2012
Abstract: The indiscriminate use of pesticides poses a serious health hazard for a large human population as well as for the flora and fauna of this planet. The present work deals with the development of sensitive and selective methods for the pesticide residue analysis in different food and environmental samples. Pesticides and their degradation products have widely proliferated the land and water, they are hazardous not only to farm workers but also to population as a whole through contamination of food, drinking water and other environmental features. Many of these pesticides are known carcinogens, endocrine disruptors, teratogens, mutants etc.These accumulate in important human organs and lead to progressively growing toxic effects.The pesticides are a necessary evil. The use of pesticides is required to control pests and to increase crop yield and hence ensuring food security for growing populations across the world. The need of the hour is to develop such efficient, rapid, powerful, sensitive and economical methods which could detect pesticides in various matrices to very low detection levels. Solid Phase Extraction is an effective and time tested pre-concentration technique. SPE alongwith HPLC has been used for the separation and quantitative determination of phenylurea herbicides. Further SPE-HPLC-UV has been employed to extract Azadirachtin pesticide from neem tree parts. newlineA new technique; MEPS (Microextraction by Packed Sorbent); which is miniaturized version of SPE has been used for the determination of Endocrine disruptor and suspected endocrine disruptor pesticides in various biological and environmental samples. This technique ensures less ssample prepation time and requires low sample volumes; as low as 10µL, hence is particularly useful for analysis in biological matrices. Derivative Spectrophotometry (DS) and spectrophotometrry have been effectively put to use for the quantitative analysis of dithiocarbamate (DTCs) fungicides and the methods have been successfully used for their analysis in different food.
Pagination: 213p.
Appears in Departments:Department of Chemistry

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01_title.pdfAttached File66.72 kBAdobe PDFView/Open
02_certificate.pdf104.82 kBAdobe PDFView/Open
03_declaration.pdf104.63 kBAdobe PDFView/Open
04_acknowledgemetns.pdf90.57 kBAdobe PDFView/Open
05_contents.pdf170.11 kBAdobe PDFView/Open
06_list of figures.pdf150.36 kBAdobe PDFView/Open
07_list of tables.pdf82.88 kBAdobe PDFView/Open
08_abbreviations.pdf81.48 kBAdobe PDFView/Open
09_abstract.pdf45.27 kBAdobe PDFView/Open
10_chapter 1.pdf744.51 kBAdobe PDFView/Open
11_chapter 2.pdf725.96 kBAdobe PDFView/Open
12_chapter 3.pdf936.9 kBAdobe PDFView/Open
13_chapter 4.pdf661.09 kBAdobe PDFView/Open
14_chapter 5.pdf1.25 MBAdobe PDFView/Open
15_chapter 6.pdf450.51 kBAdobe PDFView/Open
16_summary.pdf229.77 kBAdobe PDFView/Open
17_list of publication.pdf144.82 kBAdobe PDFView/Open

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